Cluster not found when CeresMeta runs online for a long time.

[ZuLiangWang]

Describe this problem
When the CeresMeta cluster runs online for a long time, the DefaultCluster cannot be loaded normally, resulting in a ClusterNotFound error.

Steps to reproduce
Not sure, maybe a restart of the CeresMeta node.

Expected behavior

2023-07-13 14:07:02.662 ERRO [common_util/src/panic.rs:42] thread 'main' panicked 'Fail to create default schema: CreateSchemaWithCause { catalog: "[cere](https://github.com/CeresDB/ceresmeta/issues/new?assignees=&labels=bug&projects=&template=bug_report.md#)[sdb](https://github.com/CeresDB/ceresmeta/issues/new?assignees=&labels=bug&projects=&template=bug_report.md#)", schema: "public", source: BadResponse { code: 404, msg: "grpc alloc schema idget cluster: (#404)cluster not found, cause:cluster name:defaultCluster

Additional Information